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General Motors has nearly tripled the size of its Global Battery Systems Laboratory to a point where it is now the largest battery lab in North America owned and operated by a major auto manufacturer.

The latest addition of 50,000 square feet brings to 85,000 the total square footage of the lab. GM said the expansion made possible the increase in the number of pack-level test channels from 64 to 112 and cell-level test channels from 96 to120.

“In the past four years, the competitive landscape in the electrification space has grown exponentially. This has required us to raise our game and draw a new line in the sand,” said Doug Parks, GM vice president, global product programs. “To maintain our battery leadership, this additional real estate is filled with new capability that will help us improve speed to market for our next generation of battery systems and help us improve the value equation to our customers around the world.”

GM also said its Global Battery Systems Lab has been responsible for testing and validating both battery cells and packs for all of GM’s vehicle electrification systems, including the battery systems for the Chevrolet Volt, Cadillac ELR, Chevrolet Spark EV and GM’s eAssist light electrification system.

Per GM, the additional capabilities of the lab expansion include:

dedicated equipment for future vehicle battery system development such as charger development and testing, cord set testing and competitive benchmarking;

building prototype battery packs for vehicle development programs; and,

the ability to act as the hub for validation and testing of all battery systems designed for use in future GM vehicles around the world.

In the company’s words, “the lab will also play a critical role in assuring GM’s current generation of electric vehicles maintain their battery leadership position. Teams will validate and test updates to existing chemistries and system designs to make the most of performance and reduce cost. For example, updates were made to the battery system in 2013 Chevrolet Volt that added three miles of EV range.”

In addition to the lab in Michigan, GM also operates battery labs in Shanghai, China, and Mainz-Kastel, Germany, which are tasked with testing and validation of battery cells, packs, and advanced battery system development.

Teams at the China, Germany and Michigan labs work collectively to test battery systems around the clock to reduce validation time.